Just about everything. The devil is always in the details. You can get an idea how many details there are by reviewing the 'Portfolio' and 'About Retouching' pages on this site. If you don't know what your image needs, don't worry. It's my job to suggest what can be done.
Simply email your image to me. If it's big, reduce it to about 1000 pixels on the long side. That's just for my preliminary review. No charge for this, and you're not committed to go any further. For the actual retouching, I'll ask you to send me the largest version of the image you have, preferably the raw file if you shoot in that mode.
I usually offer a flat rate based on $60 an hour (prorated for jobs that take less than an hour). We can chat by email about what you want done. In any case, you'll know the cost beforehand. No surprises. When the job is finished, I'll send you a downsized proof for your approval. If the job is simple or if it's for a good cause, I might do it for nothing and wish you happy trails. You never know.
I only do retouching and work only with digital images (no scanning or printing). If you use a print lab, I'll be glad to set up your images to meet your lab's requirements.
Paypal. When the job is done, I'll email you a request for payment. This will include a link where you can pay.
My name is David Thomasson. I live in Lynchburg, VA, and make my living as a freelance writer. I allow plenty of time for digital retouching, which I find even more satisfying than writing. I use Photoshop CS6 for image editing.